public virtual void AddNewAnswer(SurveyAnswer surveyAnswer)
{
if (surveyAnswer == null)
{
return;
}
var newSurveyAnswersSummary = new SurveyAnswersSummary(surveyAnswer.SlugName)
{
TotalAnswers = 1
};
foreach (var questionAnswer in surveyAnswer.QuestionAnswers)
{
var questionType = (QuestionType)Enum.Parse(typeof(QuestionType), questionAnswer.QuestionType);
var questionAnswersSummary = new QuestionAnswersSummary
{
QuestionType = questionType,
QuestionText = questionAnswer.QuestionText,
PossibleAnswers = questionAnswer.PossibleAnswers
};
newSurveyAnswersSummary.QuestionAnswersSummaries.Add(questionAnswersSummary);
switch (questionType)
{
case QuestionType.SimpleText:
var words = questionAnswer.Answer.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var wordCounts = new Dictionary <string, int>();
var stemmedWords =
words.Where(w => !WordCloudFiltering.IsStopWord(w))
.Select(w => Regex.Replace(w, @"[^a-z0-9]", string.Empty, System.Text.RegularExpressions.RegexOptions.IgnoreCase))
.Where(w => !WordCloudFiltering.IsNumber(w));
stemmedWords.GroupBy(w => w, w => w).ToList()
.ForEach(g => wordCounts.Add(g.Key, g.Count()));
questionAnswersSummary.AnswersSummary = JsonConvert.SerializeObject(wordCounts);
break;
case QuestionType.MultipleChoice:
var choiceCounts = new Dictionary <string, int> {
{ questionAnswer.Answer, 1 }
};
questionAnswersSummary.AnswersSummary = JsonConvert.SerializeObject(choiceCounts);
break;
case QuestionType.FiveStars:
var answer = double.Parse(questionAnswer.Answer);
questionAnswersSummary.AnswersSummary = answer.ToString("F", CultureInfo.InvariantCulture);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
this.MergeWith(newSurveyAnswersSummary);
}
internal static ClientModels.QuestionAnswersSummary ToQuestionAnswersSummary(
this QuestionAnswersSummary questionAnswersSummary)
{
if (questionAnswersSummary == null)
{
throw new ArgumentException(nameof(questionAnswersSummary));
}
return(new ClientModels.QuestionAnswersSummary()
{
AnswersSummary = questionAnswersSummary.AnswersSummary,
PossibleAnswers = questionAnswersSummary.PossibleAnswers,
QuestionText = questionAnswersSummary.QuestionText,
QuestionType = questionAnswersSummary.QuestionType.ToQuestionType()
});
}
public virtual void MergeWith(SurveyAnswersSummary surveyAnswersSummary)
{
if (surveyAnswersSummary == null)
{
return;
}
if (string.CompareOrdinal(this.SlugName, surveyAnswersSummary.SlugName) != 0)
{
throw new ArgumentException("The slug name of the surveyAnswersSummary does not match the slug name of this survey.");
}
if (this.TotalAnswers == 0)
{
this.QuestionAnswersSummaries = surveyAnswersSummary.QuestionAnswersSummaries;
this.TotalAnswers = surveyAnswersSummary.TotalAnswers;
return;
}
foreach (var newQuestionAnswersSummary in surveyAnswersSummary.QuestionAnswersSummaries)
{
QuestionAnswersSummary currentAnswer = newQuestionAnswersSummary;
var existingQuestionAnswersSummary = this.QuestionAnswersSummaries.Single(s => s.QuestionText == currentAnswer.QuestionText);
switch (existingQuestionAnswersSummary.QuestionType)
{
case QuestionType.SimpleText:
case QuestionType.MultipleChoice:
var existingChoiceCounts = JsonConvert.DeserializeObject <Dictionary <string, int> >(existingQuestionAnswersSummary.AnswersSummary);
var newChoiceCounts = JsonConvert.DeserializeObject <Dictionary <string, int> >(newQuestionAnswersSummary.AnswersSummary);
var allChoices = existingChoiceCounts.Keys.Union(newChoiceCounts.Keys);
var mergedChoicesCounts = new Dictionary <string, int>(allChoices.Count());
foreach (var choice in allChoices)
{
int existingChoiceCount = 0;
if (existingChoiceCounts.ContainsKey(choice))
{
existingChoiceCount = existingChoiceCounts[choice];
}
int newChoiceCount = 0;
if (newChoiceCounts.ContainsKey(choice))
{
newChoiceCount = newChoiceCounts[choice];
}
mergedChoicesCounts.Add(choice, existingChoiceCount + newChoiceCount);
}
existingQuestionAnswersSummary.AnswersSummary = JsonConvert.SerializeObject(mergedChoicesCounts);
break;
case QuestionType.FiveStars:
var newAnswersRating = double.Parse(newQuestionAnswersSummary.AnswersSummary, CultureInfo.InvariantCulture);
var existingAnswersRating = double.Parse(existingQuestionAnswersSummary.AnswersSummary, CultureInfo.InvariantCulture);
var updatedRatingAverage = ((newAnswersRating * surveyAnswersSummary.TotalAnswers) + (existingAnswersRating * this.TotalAnswers)) / (surveyAnswersSummary.TotalAnswers + this.TotalAnswers);
existingQuestionAnswersSummary.AnswersSummary = updatedRatingAverage.ToString("F", CultureInfo.InvariantCulture);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
this.TotalAnswers += surveyAnswersSummary.TotalAnswers;
}
